Sadetzki's results and those of others pointing to increases in the risk of developing brain tumors or acoustic neuromas, have met with widespread skepticism because, critics say, no one has seen an uptick of the these tumors in the general population. Now, the team in Jerusalem has seen exactly that —though no one is claiming to have shown a causal association. Even so, the new finding is guaranteed to rekindle concerns about the possible link between cell phones and cancer.